You can know them from comics, shows, or movies. Not gatekeeping :)
#1
nightcrawler, he was/is my brothers favorite and he is my favorite
3points
#2
Deadpool
3points
#3
Seen most of the films, used to watch the cartoons, not particularly invested in them, although I was always drawn to Nightcrawler.
2points
#4
Mystique, cause shapeshifting is cool.
2points